Yes, he did do a good job of keeping himself between the puck and defender. Problem is, this is not a game of keepaway. This is a game of hockey, and by doing that, he accomplished nothing. If there is little to no risk with him skating around in circles, why would you increase your own risk with 1 minute to go, when Detroit sucks in shootouts?
Nitpicking. Fact is, they were all skating too low and too slow to help in the event of a turnover, which was the point being made. Utilizing all your teammates both makes it harder to defend, and makes your own players more engaged and ready for quick reactions.
As has been repeated plenty of times, not many, since most hockey players remember that they have teammates, or are able to make their move before 30 seconds have passed.
It's pretty much praising Nyquist because he was able to be ineffective for longer before scoring.
This was right at the top of the circle, and well within a zone where a missed shot would have resulted in a quick turnaround the other way.